Mold apparatus.



G.' P. DILLI'G.

MOLD vAPPARATUS. APPLIOATIOHl FILED AUG. .15. 1910.

Patented Aug. 13, 1912.

5 SHEETS-SHEET 1.

G. F. DILLIG. MOLD APPARATUS.

APPLICATION FILED AUG. 16, 1910. i 1,035,425. Patented Aug. 13,1912.

5 SHEETS-SHEET 2.

G. P. DILLIG.

MOLD APPARATUS. APPLICATION FILED AUG. 15. 1910.

'Patented Aug. 13, 1912.

wuamtoz l @vih/momo 'at-Komma;

G. F. DILLG. MOLD APPARATUS. APPLIoA'rIoN FILED AUG. 15, 1910.

Batexited Au'g. 13, 1912.

a. P, 11111.19. MOLD APPARATUS.

APPLICATION FILED AUG. 15, 1910.

1,035,425: Patented Aug. 13, 1912.

l55 up the sections,

' GEORGE F. BILLIG, 0F BLTIMORE, MARYLAND.

MLD ALPARA'IVUS.

Specification of Letters Patent.

Patented Aug. v1a,i 191e.

-tipplieation filed August 15, 191B. Serial No. 577,168. l 'l To all'whom t may concern:

Beit known that I, Grenen F. Dimas, a citizen of the United States,residing at Baltimore, in the .Stateof Maryland. have 5 inventedcerta-in new and useful Improvements in Mold Ap aratns, of whichthe-following` is a speci ication.

This invention relates te an improyed mold apparatus for use during thefortnition or building of tunnels, sewers or similar structures in acontinuons hollow form of concrete, cement, brick or other material.

Onel object of the invention is' to provide.

- an improved construction of mold sections which may readilybeexpanded, contracted. and' "transferred as the building of thestructure pro resses, I

Another obgect is to provide an improved construction of mold sectionand carrier 20,'whereloy one section may readily be collapsed and' movedforward through other lexpanded sections so that the respective sec--ti-ons may be used repeatedly.

A further object is to provide an im- .A-provedV construction-of moldconveyer and .4Q in a collapsed condition. p Fig. 3, is a. similar viewthrough a tunnel structure and slfows the improved lower mold members orsections susta-ined in a collapsed condition by the conveyer orcarriage. Fig. 4 a side elevation of, the carriage and the devicesthereon for expanding or collapsing the mold ysections and also shows bybroken.

lines, the manner of sustaining and carrying the contracte-d upper andlower sections;

- Figs. 5, 6, 7 and 8 are diagrammatic side views of aqportion .of atunnel or sewer showingt-he several mold sections in placey and themanipulation or several positions of thec'arriage in taking down andset-ting i yand Fig. 9 menores-sec-` tional viewthrough amoldstructurehaving a slightly modified form,,o'f'expandingllaiid contracting devicesbut embodying the features of my invention.` y

Referring to the drawings,.1,fdesignatesi a carrier of anypreferred',construption but in the presentinstance it consistslofaframeof side bars, 2; and cross-bars 3,."which 4 are mounted on wheels, it,thatftravel, on y.track rails, 5, which latter aresustaine'd 1. eJ"er-""155 ably in a manner hereinaiterlto cdeJ scribed. Suitable bars,6, are sustained on the frame andy extend upwardly'tlicrefrom and in.theprcsent instance. these` bars'far'e arranged in pairs,-two ateaclrendfof the earrierand incline more or less-toward each other sothat their upper ends may sust-ainy horizontal 'b eams, 7 inI.a'cen'tral' position over the frame as clearly seen in'll The bars, G,may be bracedin `any desirable manner with respect to each otherjandalsoI with respect to the carrier framey soas to make them sufficientlyrigid andfstrong' to serve the purpose of supports, as shown in', Fig.4. "80

A rod, S, has a vertical position withf'respect to the carrier, 1, andinthe forms shown in Figs. 1 to 4t inclusive is sustained at its lowerend in a bearing,9, on thc" carf v rier and its upper endenterssuitablesofckcts" or plates, 10, that are attached tothe horizontalbeams, 7. This. rod, 8, .-isprovided with,.screw threads, 11, vso that asuitable hand wheel, 12, or equivalent device maybe made to travelvertically thereon :by engag 90 infr said threads. A head..13,loosely-,engages the rod, 8, and rests upon the.upperside of the handwheel orother dev ce,12, that travels on the rod and said head (pivot-l/j y sustains the inner'ends of spreaderbars, 95 14, which extendoutwardly froml said. head and which,end may be raised.i or lowered withthe vhead asthe handwheel o r other device is moved vertically onl` therod;

are provided with a plurality oflbiackets, 15, which are secured-t-heretointermedia'te its ends, as clearlyseen in.Fig.;4,anldfs,a1dbrackets pivotally sustain the vinner ends of described. L

The mold sections -mayfvary inffnumber arms, 16, the outerendsof'whichlatterare 105- beams, 7 also for a purpose presently to be 110according to the character of the work nnder construction, but informing a complete circular tunnel or sewer as illustrated 4in Figs. 1,2and 3, I prefer to employ tour sections denoted by the numerals, 19, 20,2i and, 22, respectively, The sections comprisea structural frame work,23, havinga curved outer chord, 24, which carries laggingy plates, 25,thatcompletely cover the frame. ln a horizontally longitudinal di-Vrection the plates that cover the frame may vary in breadth and widthbut they are -usually as broad as they can be made withl out interferingwith their ready handling.

The'sections are arranged in pairs,-the sec# tions, 19, and, 20,comprising one pair and Vthe sections, 21, and, 22, comprising the vthey mayswing'with respectto each other 4from a central `vertical linethrough the other pair. In the formation of a complete circular tunnelor sewer both pairs of mold sect-ions will lbe employed as shownin Fig.

. 1, wherein it will be noted that the sections,

19, and, 20, have position at the upper side of the4 arch andthesections, 21, and,.22, at

the lower side thereof. The -sections of each pair are. pivotallyconnected at, 26, so that tunnel,` By this connection the free ends,27,`of the sections may be swung inwardly toward the vertical rod tocollapse or convtact Athe sectionsv or moved outwardly from saidrod toexpand the same( Inl order to Veo pivot, 26, to expand or contract saidsec-l tio s.

t will he noted, by' referencel toFig. 2

l t at when collapsing the mold sections from kt e position shown inFig. 1 to that shown inFig. 2 the adjacent pivotally-connected ends ofthe section will drop away or move downwardly from the highest point ofthe arch a suficient distaneeto enable them to clear and 'be passed ormoved through other expanded 'sect-ions.

(In practice, after a lower mold section or' pairof sections has beenproperly placed or positioned,the upper pair of sections will be movedinto position and expanded. While held in they expanded condition,suitable connecting bars, 30, are bolted to plates,

the respective 31, which are provided on The spreader frames for thatpurpose.

.bars, 14, andv pivoted arms, 16, -may then be disconnectedfrom' themold sectionsland Loana-ee l the carrier moved to the rear of vthetunnel' or' sewer' to he engaged with other mold sectionsand carry thelatter forward to hef. set up; Splice bars, 32, 'are' proizidedAadjacent the circumference of the meld' sec m. tions to secure the endsofthau per and Y lower sections together, as, seenin ,"igil.

The rails, 5, .on which the'earrier trayets f p are sustained onrenio'vahley cressgbeains, 3%: 'which rest upon' the 'lowergumoldsectional 75' 21, and,`22, whichbe'anis'a'iie removed before the saidsections are col-lapsed.'

In the form shown inFig. gfthernlilld i sections, 34, and, 35, arepivotally connected l at, 36, and a rod, 37is sustained at oneencl Nj atthe j'oinder ofj'thetwo sections and ex tends betweenl the two sections`and at ri ht: angles to the pivot. This rod has .thescr wthreadedexterior, 38, and carries a head,39 and handwheel, 40. The spreader hars41, each have onev end pivo-tally eo'nnecte `with the head on` the rodandntheir etherends pivot-ally engage the frames'pf",the" mold sections.It is therefore ohviousif/that the movement of the.head on the willcause the spreader. bars to lexpand or. collapse the sections. In thisinstance the mold sections are sustained on a carriage, 42,.that` y ismovable on rails laid for that purpose.

The operation of collapsing, ltransferringand again setting up the formsor 'sections is diagrammatically illustrated in Figs. 5

to.8 inclusive. By reference to Fig., 5 it will be noted ,that thecarriage is sustainedl on a light rail-supporting structure, 43, so mythat the carriage will be vin position i'n the Aupper and lower moldsections that are to be collapsed and moved forward. While in 'thisposition the spreader bars, 14, will be connected to the sections, 19,and, 20, and l the. arms, 16, from the beams, 7 also connected to saidsections. The connectin bars,

30, and splice bars, 32, will then be isconnected to free the two pairsof sections whereupon the l1and-wheel, 12, may be op- 110 erated toallow the free ends of the sections to swing toward each other orcollapse as seen 'in-F ig. 2. The carriage will then be moved to oneside with the collapsed section sustained thereby as seen in Fig. 6, sothat the forward end of the beam, 7, may have a position substantiallycentrally l over .'the` lower sections, 21, and, 22, so that the blockvand'fall, 17, may be engaged with the plates, 31. The tracks, 5, andsupporting beam, 33, 12o are then removed fromy the lower sectionwhereupon said sections may be raised by the block and fall and at thesaine time collapsed as shown in Fig. 3. A short rail is thentemporarily placed between the structure, 43, and the rails in theexpanded form ahead so that the carriage supporting the two collapsedsections may be'rolled for-` wardly through the expanded forms to theopposite end where the formsare to be set up again as seen in Fig. 7.When the collapsed forms have beencarried through ister with .the lowersections, after which the connecting bars, '30,'and curved plates, 32,will be attached to the upper and lower sections tp rigidly secure themin place. The spreaderbar's, 14, and arms, 16, may then be disconnectedfrom the sections and the' carriage returned to repeat the operation onthe succeeding sections as' soon as the concrete has set sutliciently`to permit their removal.v

By means' of this invention the mold sections maybe readily set up,expanded and j secured together and as readily collapsed displaced andmoved forward and the constructionworkat'on'e end `of 4the tunnel orsewerthus be carried on. without interruption.

-Having f thus' described my invention what I claim and desire to securebyv` Letters Patent isf 1.` In a portable and expansiblel mold aptparatus the combination wlthfa 'movable carends and above the riageaplurality of structural 4metal frames pivotally cxnected at their upperrriageand each frame carryingl curved plates; a screw-threaded rodextending vertically between the carriage'and the pivotI joint at' theupper ends of the structural'l me'tal frames and said rod l extendingcentrally' between the lower free ends of the opposed structural frames;a

head on,v the exterior of the said threaded rod; a ,o tatabl headengaging the threads of the rod'andhavingposition atl oney side oi theIhead whereby to move the head longitudinally on the rod; an arm at oneside of .the head and having its inner end pivotally connected tothehead and its outerY end piv- 'otally engaging the'structural frame atone side of the rod; another arm at the dia- "metrically-oppo'site`side-x01? the said head and having its inner end pivotally-connected.to the .head and its outer end pivotally engaging the structural 'frameat the other side ofthe rod whereby the movement ofthe ro- 'tatable`headAon the threaded rod will cause the inner'pivoted en'ds`of the arms tomove vertically at opposite sides of the rod and simultaneously swingthe free ends of the opposed structural `iframes equal distances with,respect to the said threaded rod.

Q, In a portable mold apparatus the combinationwith a movable carriageof a frame sustained and extending labove the' ear' mage; a rigid' rodextending vertically fromI the carriage and havingits upper end held bythe frame; a head on the rod; means for moving the head longitudinallyon said rod;

mold sections extending over the frame, rod and carriage and havingtheir 'ends pivotally connectedabove the upper endiofgthe rod;

an arm at one side of the rodfand having one end pivotally lengagingthehead on the rod and its other end pivotally engaging one of the.pivotally-connected mold-sections; another arm at the opposite side ofthe rod and having one of its ends also engaging the said heady and itsother end pivotally connected with another oit/the saipivotallyconnected mold-sections, and vmeans traveling on the rod at oneside of the head for moving the latter longitudinally on said rod tosimultaneously swing the free ends of Ithe pivotally-connectedmoldsections toward or from the rod. 4'

43. In a portablel mold the combination with a carriage, of a rodextendingfrom the carriage and' having screw threads; a beam sustainedfrom the carriage and extending bo'th to the front and'at the rear ofthe said rod; spreader arms radiating from about the rod; arms extendinglaterally from the beams andmold sections carried by the arms yandspreader bars.

bination with 4tw'o 'pivoted lower mold' sections and twopivotally-connectd upper mold-sections and each mold section having astructural frame work; 'of means for connecting the adjacent ends of theupper and lower mold-sections whereby to forni a complete circular mold;trackers and supporting means carried by the' two lower'mold sections; acarriage movable on said tracks; means carried by the Carriage forengaging, collapsing and carrying the lower' mold sections, and meanscarried by the carrlagc for collapsing and conveying the upper inoldsections to move said lower and upper mold-sections while collapsedthrough other expanded mold sections.

In testimony whereof I affix my slgnature in presence of two witnesses.l

, GEORGE F. DILLIG.. Witnesses:

CHAS. B. MANN, G. FERDINAND Voor.

